Mechanism for forming hinges of lasts for shoes



June 15,1926. f 1,588,703

G. CLAUSING v MECHANISM FOR FORMING HINGES 0F LASTS FOR SHOES Filed June1923 BSheets-Sheet 1 INVENTOR.

June 15 1926.

' G. CLAUSING MECHANISM FOR FORMING amass 0F LASTS FOR sgoas 5Sheets-Sheet 2 Filed June 6, 1925 II I INVENTOR.

June 15 1926.

' G. CLAUSING MECHANISM FOR FORMING HINGES OF LASTS FOR SHOES- FiledJune 6, 1925 5 Sheets-Sheet 4 1NV ENTOR. 3460 6 3%,

Fig, 9,

June 15 1926. I 1,588,703

G. CLAUSING MECHANISM FORMING HINGES 0F LASTS FOR SHOES Filed June 19235 Sheets-Sheet 5 E5 ES /X 8 82 I A l/l :5; gift: Ay//////////////////////////////%/ IN VEN TOR.

Patented June 15 1926 UNITED STA TES PATENT OFFICE.

GEORGE oLA-UsI'NG, or PORTSMOUTH, OHIO, ASSIGNOR TO THE VULCAN LAST COM-PANY, 0F PORTSMOUTH, 0310,11 CORPORATIONOF OHIO.

MECHANISM FOR FORMING HINGES or nAsrs FOR SHOES.

.- Application filed June 6,

My invention relates t'oa mechanism for orming the hinges of lasts forshoes;

It is'theobjeot ofm'y invention to PIOVlClG a process and mechanism forforml'ng the hinge'portions of a ooden last, which lasts are used forthe purpose of manufacturing shoes. t

It will be" understood that such hinges must be formed With greataccuracy by severing the last body at predetermined angles and curves.It is also essent al that the severing of the last into 'tyvo'parts andthe removal of the surplus material be accomplished Without injury tothe last body.

It is a further object of my invention to provide a mechanism which Willaccurately effect these severing operations of my process. 7

It is a further object toprovidesuch a mechanism Which will duplicatethe same operations in the same Way repeatedly, so that there will beuniformity in the productresulting from the practicefof my process andthe use of my mechanism,

Referring to the drawings:

Figure 1 is an elevation of a last before being Worked upon by myprocess and mechanism. H

Figure 2 is an elevation of the last after the first step in the processhas been taken, and a V-shaped plug or section has been removed topermit of the last collapsing after the hinge has been formed. I

Figure 3is an elevation showing the second step of the process,i-n'whichthe semicircular hinge has been cut in the last.

Figure 4t is a side elevation of the last at the completion ofthe'process, after the bottom portion of the last hasbeen severed, thusforming the last in two separate parts.

Figure 5 is a plan view of the mechanism for removing the V-shaped plugor" section from the last. 7 v

Figure 6 is an elevation on the'side away from the Operator of themechanism shown at Figure 5. V

Figure 7 isan enlarged" side elevation of" the last support.

1923. Serial No. 643,609.. V

Figure 8; is a plan View, ofthe mechanism mechanism in tWo positions,-atijthe start and at the end of the hinging operation,

Figure 11 is a section through the support or block upon whichis'pivoted the carrier illustrated in the plan view in Figure 10.

Figure 12 is a} side elevation of Figure 8. In-my invention, the firststepfin the process is t'o s'ever the Vshapedsection from the upperportion of the last; the second step is thehing'ing operationto form thehinge betvveen thetwo sections of the last; and the last stepof theprocess is'the severing oper atio'n to sever two portionsof the lastfrom one emother; I I i It Will be understood'that before the processhas started upon the use it has received its preliminary shapeanjd' hasliad drilled initgby any desiredmean's, tvvo holes" paral lel to oneanotheigoiie hole being located in one half offlthe last, and the" otherhole the other half. These holes a-i e fused for the positioning pins}to be hereinafter describedl With use general statement (if the,

process, the following is a detailed descrip tion oftlie drawings:

The last sho vn in Figure l consistsho fa toe portion and a. heel 1portion respectively designated 1 and 2;

"Iii the toe, portion is the transverse hole 8, and in the heelportionuthe' transverse opening" 4, v Asiv ill be hereinafterdescribedQ-the saw makesa out along'thedinefi to formithe rearface offthe toe port-join line 6 to torn the race The block there'betwe'n isthus removed. It usually leaves a ridge at the base of the V shaped cutas at 7; which is dressed away by the saw by a slight finishingoperation;

The semi-circular" hingefis then formed on the: line? 8'', as Will" behereinafter deand then 'along jthe of thejheer portion.

the

is the means for moving this carrier to and i 1 from the operator foreffecting tne transverse out in the last body. The third feature of themachine is the lateral movement of the saw for the d fferent positioningof'the saw relative to the last body, atthe will of the operator. r r IIt will be observed in this machine that it is unnecessary, unlessdesired, to demount the last body from its holder during the severalcuts which are taken through the last body. It is also possible toadjust the last body upon its holder at a position away from the saw,thus lending a considerable factor of safety to the operation of themachine.

As to the details of the machine:

7 It ismounted upon standards 10. These standards carry a cross memberor guide 11, upon which is mounted the saw carriage or support 12. Thissaw carriage slides laterally, due to the operation thereon of a shifing lever 13, which is pivoted thereto at is.

This shifting lever is connected to a second lever 15, which projectsadjacent to the operator, so that the' operators hand or knee may movethis lever, and thus shift the saw laterally of the machine,

I I The saw 16 of circular type is mounted on a saw shaft 17 inthebearings18 and 19, which are carried on the top of the carriage 12. Apulley 20 is mounted on this shaft 17,

and a belt 21 is in turn mounted upon the pulle This belt is driven fromany suitable source of power, such as from the pulley 22, which ismounted on a conventional shaft, which in turn carries the pulley 23fixed thereon, and a loose pulley 24, which alternately engage with themain driving belt 25. These details are not of the essence of thisinvention in any way. 1

The movement of the carriage and the saw to the left hand is resisted bythe helical spring 26, which is seated at 27 in the side of the carriage12 at one end, and at its other end is seated in the standard 10 in apocket 28. The position of this spring in the pocket is determined bythe set-screw 29 and the lock-nut 30.

The limits of movement of the saw in either direction are fixed by theset-screws 31' and 32 carried by the standards on eitherv side of thecarriage. Mounted on these vertically standards, or upon a portion ofthem, is a moving support moving in a guide way. The vertical member ofthis supportis designated 33, and has a dovetailed por tion 34 slidingin a dovetailed groove in one of the standards, on the exterior thereof,as at A threadedeye 36 carried by the vertical member 33 engages with aworm 3'7,

which is actuated by a hand wheel 38, so i that the elevation of thisportion of the mechanism may be adjusted.

hfounted upon this vertical member-33 is a plate 89, retained thereon bya bolt 410. This plate, which runs transversely of the machine froma'point adjacent the saw to a point adjacent the operator, is providedwith a dovetailed groove l1, in which a dovetailed member 1 2 travels.The dovetailed.member 42 forms the base or carrier for the lastholder'.This carrier is designated 43, and projects upwardly. and laterally fromthe saw in an, arch-shaped neck 44:, uponwhich is mounted pivotally thelioldingplate 45. It is upon this holding plate that are located the tworetaining pins 46 and 47 upon which the last is mounted. These pinsproject-into the holes t and 3 in the last.v The plate itself is mountedupon the shaft 48, which rotates in the collar 49 of the bracket l4 Itwill be noted that this supportingplate as has a cut-away portionpartially ircular, as at 50, for accommodating the saw. as it enters thelast. 7

moved about its pivot by the arm or lever 51, which is held byv the handofthe oper-- The block itself is ator. It may be rested against the pin52 oragainst the pin 53, depending uponthe position ofthe last. V l iThe last ismounted upon these pins up side down, so that in the positionshown in Figure 6 the saw is in'position forformingr the forward or toeface 5 of the out which removes the V-shaped segment or section from thelast. The movement upwardly of the handle 51 would position; the lastfor taking the cut from the heel portion.

These pins 52, and 52 are mounted on baclrplate 5e, and are adjustablelay -wingnuts in a groove 56 on that plate. They alsoprojectthroughagroove 57 in a forward plate The lock-nut and bolt serveto hold the two plates together. i The plate 5% is mounted at 60 uponthe bracket 43 of the carriage. This permits an adjustment of theposition of these pins or stops and 53, which determine the position ofthe holding plate.

A further adjustment of the last-supporting pin 4-7 is effected by aloch-nut 61, which holds the pin in any desired position in the .slot G2in the holding plate 1-5.

The carrier 43 may be moved to or from the operator, as will be seen inFlgUIGB; by.

pivot 7 4.

carrier block by loosening the nut 64 on the ing plate is rotated foreffecting the cut by,

bolt 65, which is carried by the carrier block A slot 66 in the bracket44 accommodates this adjustment.

lit is therefore possible to move the last to and from the o1 era-tor orlaterally of the operator. it is possible to adjust the extent of therotation of the last on the holding plate, and it is also possible toadjust the position of one pin on the holding plate to the other. It ispossible to vary the position of the saw laterally.

With these several adjustments all within the ready reach of theoperator, T have provided a machine for this step ofcthe process whichis readily adjustable to varying conditions, sizes, and dimensions. Itis also possible to vary the entire elevation of the last--supportingstructure by the worm. 37 and the hand wheel r The mechanismto effect the second step f the process, namely, the hinge-forming step,is as follows: I

I provide a table 67, upon which there is mounted a plate 68. This platecarries an adjustable stop 69. The stop has a slot "70 for the receptionof the adjusting bolt 71 carried by the plate 68. A nut 72 fixes thestop 69 in any predetermined position. This stop is used for limitingthe movement of the carrying plate 73, as will be further describedhereinafter. This carrying plate 73 I is pivoted upon the supportingplate by a 7st is adjacent to and connected with a projecting finger 75.A semi-circular cut-away portion or recess, known as a sawslot, isformed in the plate 73 as at 76, ad

jacent to the finger 75. One part of this plate carries the pin 77, andthe other part of the plate carries thepin 78, which is adjustable inthe carrying plate 73 in the slot 79. Located adjacent to this saw-slotin this carrying plate is a vertically moving bandsaw 80. The last ismounted upon the pins with the saw substantially parallel to and closelyadjacent to the base 7 of the cut-away portion in the top of the lastwhich resulted from the previous step in the process. The lastandholding plate 7 3' can then be moved about the pivot, thus forming thesemi-circula-r hinge, by the saw cutting away the wood along the hingeline as at 8 in Figure A supplementary positioning arrangement isprovided in having the plate 68, which is a relatively heavy plate,pivotally mounted upon the table 67 by means of the link 81, which ispivoted at 82 to the table 67, and connected at 88 to the plate 68. Itis positioned by the stop 8%.

By this arrangement, it is possible to mount the last on the carryingblock with the plate 68 away from the saw, and then to bring the entiremechanism bodily adjacent to the saw, after which time the carrythe saw.This enables the operator tomount the last and adjust it, with respectto the carrying plate 73 and the plateGS, without being in proximity tothe saw.

It will also be observed that the table 67 is provided with a saw-slot86.

Tlurning to the mechanism for effecting the last step, in the processof'severing the observed that a v halves in the last, it will be table67 isprovided, having a saw-slot 86 in wl fch is located a saw 80.A'block is pivotally mounted on the table 67 by a link 89, which isconnected to the table at 90, and to'the block at .91,

This block 88 has at its outer end'a cutaway portion substantiallyV-shaped as at 92 to accommodatethe saw. Mountedupon the block adjacentto this cut-away portion, is a carrying plate 98, having the pin 94;,which projects into a hole in one half of the last, the hole of theother half of the last adapted to receive a pin 94 mounted on the blockThis plate 93 is adjustable on the block 88 through .a bolt 95 carriedby the block which works in a, slot 96 in the plate A nut 97 serves tolocate the plate v93 on the block 88 at predetermined positions. Theblock itself is limited-in its position on the table 67 by the stop 98.By moving the block and the last mounted thereon against the saw 80, theslightly circular cut 9 is taken, to sever the two halves of thelastfrom one another.-

Thus I am enabled to form from a single block by my process andmechanism, a hinged last.

It will be understood-that I desire to for moving said carrier to andfrom said i saw, a holding plate pivotally mounted on said carrieradjacent said saw, said plate having a cut-away portion for thereception of the saw as the plate is moved with the last thereon, meanson the holding plate for supporting said last on either side of theportion being cut. 7

2. In a last-hinging machine, a frame, a

transversely moving saw support mounted on said frame, means for movingsaid support on said frame having its actuating end twin.

adjacent an operator, a last carrier, a supporttherefor mounted on saidframe, means for moving said carrier to and from said saw, a holdingplate pivotally mounted on said carrier adjaeent said saw, said platehaving a cut-away portion for-the reception offthe saw as the plate ismoved with the last'thereon, means on the holding plate for supportingsaid last on either side of the portion being out, and means for movingthe holding plate to regulate the out in the last.

3. In a lastliinging machine, a frame, a transversely moving saw supportmounted on said frame, means for moving said support on said framehaving its actuating end adjacent an operator, a last carrier, a supporttherefor mounted on said frame, means for moving said carrier to andfrom said saw, a holding plate pivotallv mounted on said carrieradjacent saidsaw, said plate having a cut-away portion for the receptionof the saw as the plate is moved With the last thereon, means on theholding plate for supporting said last on either side of the portionbeing out, means for moving the I holding plate to regulate the cut inthe last,

and means for limiting the movement of said regulating means. I

4. In a last-hinging machine, a frame, a transversely moving saw supportmounted on said frame, means for moving said support on said framehavingit-s actuating end.

adjacent an operator, a last carrier, a support therefor mounted on saidframe, means for moving said carrier to and from said saw, a holdingplate pivotally mountedon said carrier adjacent said saw, said platehaving a out-away portion for the reception lure.

GEORGE OLAUSING.

